Grain-drill.



No. 879,495. -PATENTED FEB.18, 190s.

. T B ROWELL GRAIN DRILL.

APPLICATION FILED JULY 27,1907.

' in shown, described and claimed; the object PATENT OFFICE,

THEODQRE B. ROWELL, OF BEAVER DAM, WISCONSIN.

GBAILFDRILL.

Specification of Letters Patent.

Patented Feb. 18, 1908.

Application filed July 27. 1907. Serial No- 385.908.

To all whom u may concern:

Be itknown that I, THEODORE B. HOWELL, a citizen of the United States, and resident of Beaver Dam, in the county of Dodge and State of Wisconsin, have invented certain new and useful Improvements in Grain- Drills; and I do hereby declare that the following is a full, clear, and exact description thereof.

The improvements consist in what is hereofwthe invention being to simplify and cheapen the construction of grain-drills of the species having rotatory furrow o ening disks, as well as to provide forthe utilization of disk-supporting 'armscommon to either;

long or short bo'ots according as the-drills are of high or low,type, each boot'be'ingin detachable connecticnwith a partly depending rear portion of the corresponding arm having a scraper attached to its lower end;

Figure 1 of the accompanyingdrawings represents a side elevation of a grain-drill furrow-opening disk, its supporting-arm, a boot in detachable connection with the arm and. a scraper attached to said armj Fig. 2 a horizontal section on the plane indicated by line 2-2 in Fig. 1; Fig. 3, a partly sectional side elevation of a fragment of the connected arm and boot, theview'being from the side opposite that from-which Fig. .1 is-taken, and Fig. 4, a rear elevation of the arm.

Referring by letter to the drawings A indi-' cates a fragment of a dra -bar riveted" or otherwise suitably fastened between-parallel ribs 6 of a forward extension of an arm B, and the bearing-hub of an ordinary rotatory furrow-opening disk Cengages' an .zn'bor-bolt- 'c f in connection with said arm. The arm Bhas, a partly depending rear portion Bf that is concave at theback and of triangular-form in, horizontal section at the lower end, this lower end of said depending portion of thearm be-.' ing forwardly extended and'recessed at one side. A disk-scraper D is riveted orotherwise" fastened at its rear end in the lower end side recess of the depending portion of-the aforesaid arm flush with the same.' Bolted in theconcavity of the partly depending por-' tion B of the armB is a boot E, and this boot is provided with the usualrear' eye-lug d forthe attachment thereto of a suitable drag. The arm'B is suitably bowed so'that the discharge end ofthe boot will at alltimes register with the furrow opened by the disk 0 aforesaid.

, scraper may be readily As a matter of detail the boot is provided with a countersunk partly angular opening extending through a boss e of same. This boss en agesarecess in the adjacent rear portiondd of the arm B, and central of said recessis an opening extending through a bossf of said rear portion of the arm. angular bolt 9 extends through the openings in the boot and arm bosses and a clamping nut his run on the bolt against the arm-boss, the head of said bolt being within the countersink of the boot-opening.

'From the foregoing it will be understood that the disk-scraper is an attachment of the disk-supportin arm, and that this arm at the scraper-end of same is. of such construction as to not interfere with a furrow cut by the disk. It will also be understood, that inasmuchas there is detachable connection I of the disk sup orting arm and boot, the cost a of replacin elt er in case one or the] other is broken, l be less than Were'said arm and boot in one piece as is ordinarily the case, and furthermore the same arm can be utilized in connection with either a lon orshort boot all do ending as to Whether t e grain drill is of or low-down type.

The arm may be a malleable or grayiiron casting and the boot made of steel plate to thus 11 hten the drill without sacrifice of strengt -It also follows" that a new diskthat is broken or worn out.

I claim:

1 The combination of an arm attachable to a drag-bar and having a partlsz depending rear portion concave at the back, a rotatory urrow-opening disk supported in connection with the arm, a disk-scraper attached to the W lowfiiel fil of the rear port on of said arm, and 1a hoot fastened in the concavity of said rear portion of the aforesaid arm;

2; The combination ofan arm attachable ,to a drag-bar and having a partly depending concave rear portion, arotatory furrow-opening su ported in connection with the arm in the concavity A partly substituted for one arm and a oot detachably fastened to said 4'. The combination of an arm attachable gageable with therecess aforesaid, a

to a drag-bar and having a partly depending fitting the concavity of the rear portion of said arm and having a countersunk partly angular opening extending through a boss enartly angular bolt engaging the countersinii openings aforesaid, and a clamping nut, run

with a recess and an opening central of I and ! on the'bolt against sald depending portion of 5 the aforesaid arm. I

In testimony that I claim the fore oing I i have hereunto set my hand at Beaver am in 15" i the county of Dodge and State of Wisconsin 5 in the presence of two Witnesses.

. THEO. B. ROWELL Witnesses i E. D. STACY,

R. I-I BARBER? 

